[MPlayer-users] DivX on slow systems

[Anders Rune Jensen]

On Fri, 26 Oct 2001 02:41:31 +0200 (MET DST)
Sebastian Rosenkiewicz <sebo at ds2.pg.gda.pl> wrote:

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html &
>  http://gcc.gnu.org/gcc-2.96.html if you still have questions or problems]
> 
> Hi.
> I've just subscribed to this mailing list because I want to ask a few
> questions.
> First of all, I have K6 200MHz / 64MB RAM, S3 Virge/DX, running Debian
> woody, kernel 2.4.10. Obviously, I'm unable to play DivX movies under M$
> Windows at all. But now I tried this new mplayer for linux. I've noticed
> that a DivX file even with high quality audio/video streams, runs pretty
> well, but only with sound disabled. I know that you wrote in FAQ that such
> a system is just too slow, but that's not true. My system can handle such
> a video stream (mplayer running with -nosound) with some mp3 file played
> through mpg123 with `mono' and `downsampling' options at once.
> Unfortunetly I couldn't find downsampling option on mplayer (`-srate'
> simply plays the stream slower), so I've tried to implement it. I've spend
> a few hours on it today, but only managed to get a distorted ~11kHz audio
> that sounds rather ugly (unlike mpg123 -4, witch sounds pretty good), but
> the stream was synced and played smoothly. So here's my question: are you
> going to implement downgrading quality options that could be useful for
> slow systems ? I don't really like the idea of buying a new computer just
> for DivX movies.

Maybe your soundcard doesn't support 48k hz, I had the same problem with my yamaha soundcard, but after upgrading from the standard ones in the kernel to alsa sounddrivers it now works perfect. You should try that.

> 
> Two more things:
> 
> - Maybe I'm wrong, but it looks like mplayer waits for an audio frame to
> finnish playing, before further computation begins (a movie is played
> slower with lower -srate). Why is that ? It's a waste of CPU time.

Interesting

> 
> - On my system I didn't notice any problems when i disabled reset()ing
> an audio device while seeking a stream. Maybe you should consider removing
> it ? It just introduces `sparks' while rewinding.
> 
> Regards, Sebastian Rosenkiewicz
> -- 
> | Student at Technical University of Gdansk
> | ICQ 51979800       IRCNet: @#elblag, @#pg
> |         http://irc.elblag.eu.org
> | Time not important, only life important...
> 
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-- 
Med venlig Hilsen
----------------------------------------------------
|Anders Rune Jensen        icq  : #52926571        | 
|Markusgade 7 4. TH        email: root at gnulinux.dk |
|9000 Ålborg               web  : www.gnulinux.dk  |
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